Haiyan Longwei Hardware Co.,Ltd Lies in the city HaiYan ,which is famous for standard parts.Branding on Hangzhou Gulf,facing Hangzhou in the south and leaning against Shanghai in the north ,at the same time ,the first and longest bridge in Asia will be completed soon ,which makes the transportation more convenientour and the position more advantageous .
  We specilize in the production of low carbon steel ,middle carbon steel and stainless steel U=bolt,foundation bolt,eye bolt,stud ,the sizes ranging from M6 to M36 ,and the standards includes BS(Britain Standard),ANSI(Amercia Standard),DIN(German Stardard).